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Installation
Installation
A bleed-type master air valve (AD) and a fluid drain
valve (AE) are required in your system to help reduce
the risk of serious injury, including splashing fluid in
the eyes or on the skin, and injury from moving parts
when you are adjusting or repairing the pump.
•
The bleed-type master air valve (AD) relieves air
trapped between this valve and the pump after the
pump is shut off. Trapped air can cause the pump
to cycle unexpectedly and result in serious injury,
including amputation. Install the valve close to the
pump.
•
The fluid drain valve (AE) helps relieve pressure in
the displacement pump and fluid supply lines
when shutting off the pump. Actuating the gun to
relieve pressure may not be sufficient, especially if
there is a clog in the hose or the spray gun.
Grounding
The equipment must be grounded to reduce the risk
of static sparking. Static sparking can cause fumes to
ignite or explode. Grounding provides an escape wire
for the electric current.
Pump: Verify that the ground screw (GS) is attached
and tightened securely to the pump body. Connect the
other end of the ground wire (U) to a true earth ground.
When installed in a truck or trailer, connect the ground
wire (U) to the frame of the truck or trailer.
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The following items are sold separately:
Air compressor: Ground according to manufacturer
recommendations.
Air and fluid hoses: Use only electrically conductive
hoses with a maximum of 300 ft (91 m) combined hose
length to ensure grounding continuity. Check electrical
resistance of hoses. If total resistance to ground
exceeds 29 megohms, replace the hose immediately.
Fluid supply container: Follow local code.
Solvent pails used when flushing: Follow local code.
Use only conductive metal pails, placed on a grounded
surface. Do not place the pail on a non-conductive
surface, such as paper or cardboard, which interrupts
grounding continuity.
To maintain grounding continuity when flushing or
relieving pressure: Hold metal part of the spray gun
firmly to the side of a grounded metal pail, then trigger
the gun.
3A8502A
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